ChemicalElements

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Element Symbol AtomicNumber ChemicalPropertyId OriginOfName Group Period AtomicWeight AtomicWeightUncertainty Density MeltingPoint BoilingPoint HeatCapacity Electronegativity AbundanceInEarthsCrust
Polonium Po 84 Post-​transition metal Named after the home country of Marie Curie (Polonia, Latin for Poland), who is also the discoverer of Radium 16 6 9.32 527.00 1235.00 2.00 0.00
Zinc Zn 30 Post-​transition metal German word Zinke (prong, tooth) 12 4 65.38 0.02 7.13 692.88 1180.00 0.39 1.65 70.00
Sodium Na 11 Alkali metal the English word soda (natrium in Latin) 1 3 22.99 0.00 0.97 370.87 1156.00 1.23 0.93 23600.00
Cadmium Cd 48 Post-​transition metal the New Latin cadmia, from King Kadmos 12 5 112.41 0.00 8.69 594.22 1040.00 0.23 1.69 0.16
Potassium K 19 Alkali metal New Latin potassa, 'potash' (kalium in Latin) 1 4 39.10 0.00 0.86 336.53 1032.00 0.76 0.82 20900.00
Rubidium Rb 37 Alkali metal the Latin rubidus, 'deep red' 1 5 85.47 0.00 1.53 312.46 961.00 0.36 0.82 90.00
Selenium Se 34 Reactive nonmetal the Greek selene, 'moon' 16 4 78.97 0.01 4.81 453.00 958.00 0.32 2.55 0.05
Francium Fr 87 Alkali metal Francia, the New Latin name for France 1 7 1.87 300.00 950.00 0.70 0.00
Caesium Cs 55 Alkali metal the Latin caesius, 'sky blue' 1 6 132.91 0.00 1.87 301.59 944.00 0.24 0.79 3.00
Arsenic As 33 Metalloid English word (Latin arsenicum) 15 4 74.92 0.00 5.78 1090.00 887.00 0.33 2.18 1.80